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([2a01:e34:ed2f:f020:5150:1004:6c70:8db9]) by smtp.googlemail.com with ESMTPSA id n11sm27882644wru.38.2020.11.17.09.44.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Nov 2020 09:44:43 -0800 (PST) Subject: Re: [PATCH v2 4/4] powercap/drivers/dtpm: Add CPU energy model based support To: Lukasz Luba References: <20201116152649.11482-1-daniel.lezcano@linaro.org> <20201116152649.11482-5-daniel.lezcano@linaro.org> From: Daniel Lezcano Message-ID: <6c9db999-0846-cd42-a061-c638197b5661@linaro.org> Date: Tue, 17 Nov 2020 18:44:42 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201117_124447_311380_D336E120 X-CRM114-Status: GOOD ( 27.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ulf.hansson@linaro.org, linux-pm@vger.kernel.org, rjw@rjwysocki.net, linux-kernel@vger.kernel.org, ilina@codeaurora.org, rkumbako@codeaurora.org, rui.zhang@intel.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMTcvMTEvMjAyMCAxNDoxNSwgTHVrYXN6IEx1YmEgd3JvdGU6Cj4gSGkgRGFuaWVsLAo+IAo+ IE9ubHkgb25lIHNtYWxsIGNvbW1lbnQgcmVnYXJkaW5nIHRoZSBzZXR1cCBvZiAncG93ZXJfbGlt aXQnLgo+IAo+IE9uIDExLzE2LzIwIDM6MjYgUE0sIERhbmllbCBMZXpjYW5vIHdyb3RlOgo+PiBX aXRoIHRoZSBwb3dlcmNhcCBkdHBtIGNvbnRyb2xsZXIsIHdlIGFyZSBhYmxlIHRvIHBsdWcgZGV2 aWNlcyB3aXRoCj4+IHBvd2VyIGxpbWl0YXRpb24gZmVhdHVyZXMgaW4gdGhlIHRyZWUuCj4+Cj4+ IFRoZSBmb2xsb3dpbmcgcGF0Y2ggaW50cm9kdWNlcyB0aGUgQ1BVIHBvd2VyIGxpbWl0YXRpb24g YmFzZWQgb24gdGhlCj4+IGVuZXJneSBtb2RlbCBhbmQgdGhlIHBlcmZvcm1hbmNlIHN0YXRlcy4K Pj4KPj4gVGhlIHBvd2VyIGxpbWl0YXRpb24gaXMgZG9uZSBhdCB0aGUgcGVyZm9ybWFuY2UgZG9t YWluIGxldmVsLiBJZiBzb21lCj4+IENQVXMgYXJlIHVucGx1Z2dlZCwgdGhlIGNvcnJlc3BvbmRp bmcgcG93ZXIgd2lsbCBiZSBzdWJ0cmFjdGVkIGZyb20KPj4gdGhlIHBlcmZvcm1hbmNlIGRvbWFp biB0b3RhbCBwb3dlci4KPj4KPj4gSXQgaXMgdXAgdG8gdGhlIHBsYXRmb3JtIHRvIGluaXRpYWxp emUgdGhlIGR0cG0gdHJlZSBhbmQgYWRkIHRoZSBDUFUuCj4+CgpbIC4uLiBdCgo+PiArCj4+ICvC oMKgwqAgZHRwbSA9IHBlcl9jcHUoZHRwbV9wZXJfY3B1LCBjcHUpOwo+PiArwqDCoMKgIGlmIChk dHBtKQo+PiArwqDCoMKgwqDCoMKgwqAgcmV0dXJuIHBvd2VyX2FkZChkdHBtLCBwZCk7Cj4gCj4g VGhlIGR0cG0tPnBvd2VyX2xpbWl0IGlzIG5vdCBpbmNyZW1lbnRlZCBpbiB0aGlzIHBhdGgsIHdo ZW4gYSBuZXcKPiBDUFUgam9pbnMgdGhlIGNsdXN0ZXIuCj4gSXMgaXQgY29ycmVjdD8KClllcywg eW91IGFyZSByaWdodCwgdGhlcmUgaXMgc29tZXRoaW5nIG1pc3NpbmcgaGVyZS4gSXQgZG9lcyBu b3QgY2hhbmdlCnRoZSBiZWhhdmlvciBvZiB0aGUgcG93ZXIgY2FwcGluZywgYnV0IHRoZSB2YWx1 ZSB3aWxsIGJlIGluY29uc2lzdGVudCBpbgp0aGUgdHJlZS4KCj4gT3IgbWF5YmUgd2UgbmVlZCBz b21ldGhpbmcgbGlrZToKPiAtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0+OC0tLS0tLS0t LS0tLS0tLS0tLS0tLQo+IMKgwqDCoMKgwqDCoMKgIGlmIChkdHBtKSB7Cj4gwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgIHJldCA9IHBvd2VyX2FkZChkdHBtLCBwZCk7Cj4gwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgIGlmICghcmV0KQo+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgZHRwbS0+cG93ZXJfbGltaXQgPSBkdHBtLT5wb3dlcl9t YXg7Cj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIHJldHVybiByZXQ7Cj4gwqDCoMKg wqDCoMKgwqAgfQo+IC0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLTg8LS0tLS0tLS0tLS0tLS0tCj4g Cj4gVGhlIHBvd2VyX21heCBzaG91bGQgYmUgdXBkYXRlZCBhZnRlciBzdWNjZXNzZnVsIHBvd2Vy X2FkZCgpLgo+IEl0IHdvdWxkIGRpc3R1cmIgdXNlciBzZXQgdmFsdWUgaW4gcG93ZXJfbGltaXQs IHRob3VnaCAoZGVzY3JpYmVkCj4gYmVsb3cpLgo+IAo+IAo+PiArCj4+ICvCoMKgwqAgZHRwbSA9 IGR0cG1fYWxsb2MoKTsKPj4gK8KgwqDCoCBpZiAoIWR0cG0pCj4+ICvCoMKgwqDCoMKgwqDCoCBy ZXR1cm4gLUVJTlZBTDsKPj4gKwo+PiArwqDCoMKgIGR0cG1fY3B1ID0ga3phbGxvYyhzaXplb2Yo ZHRwbV9jcHUpLCBHRlBfS0VSTkVMKTsKPj4gK8KgwqDCoCBpZiAoIWR0cG1fY3B1KSB7Cj4+ICvC oMKgwqDCoMKgwqDCoCBrZnJlZShkdHBtKTsKPj4gK8KgwqDCoMKgwqDCoMKgIHJldHVybiAtRU5P TUVNOwo+PiArwqDCoMKgIH0KPj4gKwo+PiArwqDCoMKgIGR0cG0tPnByaXZhdGUgPSBkdHBtX2Nw dTsKPj4gK8KgwqDCoCBkdHBtX2NwdS0+Y3B1ID0gY3B1Owo+PiArCj4+ICvCoMKgwqAgZm9yX2Vh Y2hfY3B1KGNwdSwgcG9saWN5LT5yZWxhdGVkX2NwdXMpCj4+ICvCoMKgwqDCoMKgwqDCoCBwZXJf Y3B1KGR0cG1fcGVyX2NwdSwgY3B1KSA9IGR0cG07Cj4+ICsKPj4gK8KgwqDCoCByZXQgPSBwb3dl cl9hZGQoZHRwbSwgcGQpOwo+PiArwqDCoMKgIGlmIChyZXQpCj4+ICvCoMKgwqDCoMKgwqDCoCBn b3RvIG91dF9rZnJlZV9kdHBtX2NwdTsKPj4gKwo+PiArwqDCoMKgIGR0cG0tPnBvd2VyX2xpbWl0 ID0gZHRwbS0+cG93ZXJfbWF4Owo+IAo+IEhlcmUsIHRoZSBwb3dlcl9saW1pdCB3aWxsIGJlIHNl dCBvbmx5IG9uY2Ugd2l0aCBwb3dlcl9tYXgKPiBmb3IgYSBzaW5nbGUgQ1BVLiBJIGFtIG5vdCBz dXJlLCBidXQgbWF5YmUgd2UgY2FuIHNpbXBsZSBzYXk6Cj4gCj4gZHRwbS0+cG93ZXJfbGltaXQg PSBkdHBtLT5wb3dlcl9tYXggKiBjcHVtYXNrX3dlaWdodChwb2xpY3ktPnJlbGF0ZWRfY3B1cykK PiAKPiBhbiBhdm9pZCB0b3VjaGluZyBpdCBsYXRlciAoPykKPiAKPiBCZWNhdXNlIHRoaXMgZnVu Y3Rpb24gY2FuIGJlIGNhbGxlZCBpbiBydW50aW1lLCB3aGVuIHRoZSBwb3dlcl9saW1pdAo+IHdh cyBhbHJlYWR5IHNldCBieSB1c2Vyc3BhY2UsIHRoZSBob3RwbHVnaW5nIGluL291dC9pbi4uLiBD UFUgc2hvdWxkbid0Cj4gY2hhbmdlIHRoaXMgbGltaXQuCgpIbW0sIEkgaGF2ZSB0byB0aGluayBh Ym91dCBpdCBiZWNhdXNlIHRoZSBwb3dlcl9saW1pdCBpcyBhbHdheXMgbGVzcyBvcgplcXVhbCB0 byBwb3dlcl9tYXguCgoKLS0gCjxodHRwOi8vd3d3LmxpbmFyby5vcmcvPiBMaW5hcm8ub3JnIOKU giBPcGVuIHNvdXJjZSBzb2Z0d2FyZSBmb3IgQVJNIFNvQ3MKCkZvbGxvdyBMaW5hcm86ICA8aHR0 cDovL3d3dy5mYWNlYm9vay5jb20vcGFnZXMvTGluYXJvPiBGYWNlYm9vayB8CjxodHRwOi8vdHdp dHRlci5jb20vIyEvbGluYXJvb3JnPiBUd2l0dGVyIHwKPGh0dHA6Ly93d3cubGluYXJvLm9yZy9s aW5hcm8tYmxvZy8+IEJsb2cKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxA bGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK